Trending packages get duplicates

<img width="1102" height="785" alt="Image" src="https://github.com/user-attachments/assets/db777fec-7135-4aca-af25-814ba8f5876b" />

Job prob ran twice and added duplicates.

Also note we only backfill 1 year with of "first seen". So we should avoid these dupes plus backfill longer